Find the Center of Mass of a Thin Plate Covering $x$

Multiple Choice

Find the center of mass of a thin plate covering the given region with the given density function.
-The region between the $x$ -axis and the curve $y = \frac { 2 } { x ^ { 2 } } , 1 \leq x \leq 2$ , with density $\delta ( x ) = \frac { x ^ { 2 } } { 2 }$

A) $\bar { x } = \frac { 3 } { 2 } , \bar { y } = \frac { 1 } { 2 }$
B) $\bar { x } = \frac { 3 } { 2 } , \bar { y } = 1$
C) $\bar { x } = \frac { 3 } { 2 } , \bar { y } = \frac { 3 } { 2 }$
D) $\bar { x } = \frac { 5 } { 4 } , \bar { y } = \frac { 1 } { 2 }$